Run results for: Array concat vs spread operator vs push

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 12_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/77.0.3865.103 Mobile/15E148 Safari/605.1

Browser: Chrome Mobile iOS 77

Operating system: iOS 12.4

Device Platform: Mobile

Date tested: 5 years ago

Test name	Executions per second
Array.prototype.concat	3668506.0 Ops/sec
spread operator	13679489.0 Ops/sec
Push	1527479.5 Ops/sec

Tests:

Array.prototype.concat
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].concat(params);
spread operator
var params = [ "hello", true, 7 ] var other = [ 1, 2, ...params ]
Push
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].push(...params);

Run results for: Array concat vs spread operator vs push

Compare the new ES6 spread operator with the traditional concat() method and push

Array.prototype.concat

spread operator

Push